406073521439 has 2 divisors, whose sum is σ = 406073521440. Its totient is φ = 406073521438.

The previous prime is 406073521423. The next prime is 406073521453. The reversal of 406073521439 is 934125370604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406073521439 - 2⁴ = 406073521423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406073521439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406073541439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203036760719 + 203036760720.

It is an arithmetic number, because the mean of its divisors is an integer number (203036760720).

Almost surely, 2^406073521439 is an apocalyptic number.

406073521439 is a deficient number, since it is larger than the sum of its proper divisors (1).

406073521439 is an equidigital number, since it uses as much as digits as its factorization.

406073521439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 406073521439 in words is "four hundred six billion, seventy-three million, five hundred twenty-one thousand, four hundred thirty-nine".